Updated tooling.

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "jquery-cascading-dropdown",
-  "version": "1.2.6",
+  "version": "1.2.7",
   "homepage": "https://github.com/dnasir/jquery-cascading-dropdown",
   "authors": [
     "Dzulqarnain Nasir <dzul1983@gmail.com>"

gulpfile.js

@@ -1,15 +1,21 @@
 var gulp = require('gulp');
-var uglifyjs = require('gulp-uglifyjs');
+var uglify = require('gulp-uglify');
 var header = require('gulp-header');
+var sourcemaps = require('gulp-sourcemaps');
+var rename = require('gulp-rename');
 var pkg = require('./package.json');
 
-var banner = '/*! <%= pkg.name %> <%= pkg.version %> | (c) 2015 <%= pkg.author %> | <%= pkg.license %> */\n';
+var year = new Date().getFullYear();
+var banner = '/*! <%= pkg.name %> <%= pkg.version %> | (c) ' + year + ' <%= pkg.author %> | <%= pkg.license %> */\n';
 
 gulp.task('js', function() {
     gulp.src('src/jquery.cascadingdropdown.js')
-        .pipe(gulp.dest('dist/'))
-        .pipe(uglifyjs('jquery.cascadingdropdown.min.js', { outSourceMap: true }))
         .pipe(header(banner, { pkg: pkg }))
+        .pipe(gulp.dest('dist/'))
+        .pipe(rename('jquery.cascadingdropdown.min.js'))
+        .pipe(sourcemaps.init())
+        .pipe(uglify({ preserveComments: 'license' }))        
+        .pipe(sourcemaps.write('./'))
         .pipe(gulp.dest('dist/'));
 });
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "jquery-cascading-dropdown",
-  "version": "1.2.6",
+  "version": "1.2.7",
   "description": "A simple and lighweight jQuery plugin for creating cascading dropdowns.",
   "main": "dist/jquery.cascadingdropdown.js",
   "scripts": {
@@ -23,8 +23,10 @@
   "homepage": "https://github.com/dnasir/jquery-cascading-dropdown",
   "dependencies": {},
   "devDependencies": {
-    "gulp": "~3.8.11",
-    "gulp-uglifyjs": "~0.6.1",
-    "gulp-header": "~1.2.2"
+    "gulp": "^3.9.1",
+    "gulp-uglify": "^1.5.3",
+    "gulp-header": "^1.7.1",
+    "gulp-sourcemaps": "^1.6.0",
+    "gulp-rename": "^1.2.2"
   }
 }